I would like to request assistance in creating a database with Oracle-managed files.

I've gotten a handle on the basics of using the Database Configuration Assistant that comes with 9.2 , but am having trouble finding a way to delete the CONTROL_FILE parameter, so the parameters DB_CREATE_FILE_DEST and DB_CREATE_ONLINE_LOG_DEST_n are used to manage the database's files.

If I want to take advantage of OMF, do I have to create the database manually?